Long-Term Health Monitoring of Pavement Deformations on an Expressway

摘要

The increasing traffic density and increasing axle loads on highways requires an efficient road maintenance. Within a long-term project over 10 years load and pavement deformations on a heavily travelled expressway are measured. A newly developed sensor based on the magnetostrictive principle measures the vertical deformations within the pavement layers in parallel to existing inductive sensors. Short-term data of the two different systems and long-term data of the new sensor over a one year period are presented and further improvements discussed.